NoOpNode

Warning! This page documents an old version of Kapacitor, which is no longer actively developed. Kapacitor v1.4 is the most recent stable version of Kapacitor.

A node that does not perform any operation.

Do not use this node in a TICKscript there should be no need for it.

If a node does not have any children, then its emitted count remains zero.
Using a NoOpNode is a work around so that statistics are accurately reported
for nodes with no real children.
A NoOpNode is automatically appended to any node that is a source for a StatsNode
and does not have any children.

Elapsed

Eval

Create an eval node that will evaluate the given transformation function to each data point.
A list of expressions may be provided and will be evaluated in the order they are given.
The results are available to later expressions.

HttpOut

Create an HTTP output node that caches the most recent data it has received.
The cached data are available at the given endpoint.
The endpoint is the relative path from the API endpoint of the running task.
For example, if the task endpoint is at /kapacitor/v1/tasks/&lt;task_id&gt; and endpoint is
top10, then the data can be requested from /kapacitor/v1/tasks/&lt;task_id&gt;/top10.

Spread

Stats

Create a new stream of data that contains the internal statistics of the node.
The interval represents how often to emit the statistics based on real time.
This means the interval time is independent of the times of the data points the source node is receiving.